Environment-friendly dust-raising-preventing coal sampling machine

Abstract

The utility model provides an environment-friendly dust-raising-prevention coal sampling machine which comprises a machine shell, a discharging pipe is installed on the lower surface of the machine shell, a dust removal assembly is installed on the machine shell, and the dust removal assembly comprises a top dust suction hood, a side dust suction hood, a conveying pipe, a dust collection box, a vacuum pipe, a vacuum pump, a filter screen and a coal sample storage box. The interior of the top dust suction hood and the interior of the side dust suction hood are each fixedly connected with a protective net. Power is supplied to the vacuum pump, the vacuum pump extracts gas in the dust collection box through the vacuum pipe, so that the interior of the dust collection box is in negative pressure, external air can be extracted through the top dust suction hood and the side dust suction hood, raised dust generated when the sampling hopper is in contact with coal is subjected to adsorption and dust removal through the top dust suction hood, and the dust removal efficiency is improved. Coal falls into the coal sample storage box to generate dust, the dust is adsorbed and removed through the side dust suction hood, and then the coal dust is collected into the dust collection box under the filtration of the filter screen, so that the collection of the coal dust is completed, and dust pollution is avoided.

Description

Technical Field

[0001] This utility model relates to a sampling machine, specifically an environmentally friendly dust-preventing coal sampling machine, belonging to the field of coal sampling technology. Background Technology

[0002] In coal mining, coal is typically transported using conveyor belts. During transport, sampling is usually required, followed by testing to determine the coal's quality. Coal sampling is usually performed using a coal sampling machine, which mainly consists of a sampling hopper, an automatic control device, and a coal sample storage bin. During sampling, the sampling hopper sweeps the coal from the conveyor belt into the discharge pipe, from where it falls into the storage bin, thus obtaining a coal sample.

[0003] Current coal sampling machines involve the sampling bucket contacting the coal on the conveyor belt to achieve cross-sectional sampling. However, when the sampling bucket contacts the coal on the conveyor belt, due to physical friction and impact, fine particles on the coal surface are stripped off and thrown up, forming dust. At the same time, as the conveyor belt moves, the generated dust will be scattered to the outside of the machine along the conveyor belt, causing dust pollution. Therefore, an environmentally friendly dust-proof coal sampling machine is proposed. Utility Model Content

[0004] In view of this, the present invention provides an environmentally friendly dust-proof coal sampling machine to solve or alleviate the technical problems existing in the prior art, and at least provides a beneficial option.

[0005] The technical solution of this utility model embodiment is implemented as follows: an environmentally friendly dust-proof coal sampling machine includes a housing, a feeding pipe installed on the lower surface of the housing, and a dust removal component installed on the housing. The dust removal component includes a top dust suction hood, a side dust suction hood, a conveying pipe, a dust collection box, a vacuum tube, a vacuum pump, a filter screen, and a coal sample storage box.

[0006] The top and side dust collection hoods are both fixedly connected to protective nets. Both the top and side dust collection hoods are connected to the dust collection box via conveying pipes. The filter screen is installed inside the dust collection box. One end of the vacuum tube is connected to the dust collection box, and the other end of the vacuum tube is connected to the air inlet of the vacuum pump. The conveying pipe and the vacuum tube are located on both sides of the filter screen. The coal sample storage box is slidably connected to the bottom of the inner wall of the feeding pipe.

[0007] More preferably, the top dust suction hood is installed on the lower surface of the housing, and the side dust suction hood is installed on one side of the feed pipe, and the side dust suction hood is connected to the feed pipe.

[0008] More preferably, the side dust suction hood is located above the coal sample storage box, and the feed pipe is connected to the machine casing.

[0009] More preferably, the vacuum pump is mounted on the rear surface of the housing, and the top dust suction hood is located at the front of the housing.

[0010] More preferably, a mounting bracket is fixedly connected to the lower surface of the housing, and a drive motor is mounted on the upper surface of the mounting bracket.

[0011] More preferably, a drive shaft is rotatably connected inside the housing, a connecting rod is fixedly connected to the outer wall of the drive shaft, and a sampling hopper is fixedly connected to the end of the connecting rod away from the drive shaft.

[0012] More preferably, the output shaft of the drive motor is fixedly connected to one end of the drive shaft.

[0013] More preferably, the sampling hopper is located inside the housing.

[0014] The present invention has the following advantages due to the adoption of the above technical solution:

[0015] This invention powers a vacuum pump, which draws gas from the dust collection box through a vacuum tube, creating a negative pressure inside the box. Since both the top and side dust hoods are connected to the dust collection box via delivery pipes, they can extract external air. Dust generated when the sampling hopper contacts the coal is absorbed and removed by the top dust hood. Dust generated when coal falls into the coal sample storage box is absorbed and removed by the side dust hood. Finally, the coal dust is collected in the dust collection box through a filter screen, thus completing the collection of coal dust and preventing dust pollution.

[0016] The above overview is for illustrative purposes only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of the present invention will become readily apparent from the accompanying drawings and the following detailed description. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a structural diagram of the present invention;

[0019] Figure 2 This is a schematic diagram showing the connection between the top dust suction cover and the housing of this utility model;

[0020] Figure 3 This is a structural diagram of the sampling bucket of this utility model;

[0021] Figure 4 This is a structural diagram of the dust removal component of this utility model;

[0022] Figure 5 This is a schematic diagram showing the connection between the filter screen and the dust collection box of this utility model.

[0023] Reference numerals: 101, Dust removal assembly; 11, Top dust suction hood; 12, Protective net; 13, Side dust suction hood; 14, Conveying pipe; 15, Dust collection box; 16, Vacuum tube; 17, Vacuum pump; 18, Filter screen; 19, Feeding pipe; 20, Housing; 21, Drive motor; 22, Mounting frame; 23, Sampling hopper; 24, Connecting rod; 25, Drive shaft; 26, Coal sample storage box. Detailed Implementation

[0024] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of this invention. Therefore, the drawings and description are considered exemplary in nature and not restrictive.

[0025] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0026] like Figures 1-5 As shown, this utility model embodiment provides an environmentally friendly dust-proof coal sampling machine, including a housing 20, a feeding pipe 19 installed on the lower surface of the housing 20, and a dust removal assembly 101 installed on the housing 20. The dust removal assembly 101 includes a top dust suction hood 11, a side dust suction hood 13, a conveying pipe 14, a dust collection box 15, a vacuum tube 16, a vacuum pump 17, a filter screen 18, and a coal sample storage box 26.

[0027] Protective nets 12 are fixedly connected to the inside of the top dust hood 11 and the side dust hood 13. The protective nets 12 can prevent large coal particles from being sucked into the inside of the top dust hood 11 and the side dust hood 13. The top dust hood 11 and the side dust hood 13 are connected to the dust collection box 15 through the conveying pipe 14. The filter screen 18 is installed inside the dust collection box 15. One end of the vacuum tube 16 is connected to the dust collection box 15, and the other end of the vacuum tube 16 is connected to the air inlet of the vacuum pump 17. The conveying pipe 14 and the vacuum tube 16 are located on both sides of the filter screen 18. The coal sample storage box 26 is slidably connected to the bottom of the inner wall of the feeding pipe 19.

[0028] The dust removal assembly 101 is used to remove dust during the coal sampling process. When working, the vacuum pump 17 is powered and the vacuum pump 17 draws gas from the dust collection box 15 through the vacuum tube 16, making the inside of the dust collection box 15 negative pressure. Since the top dust suction hood 11 and the side dust suction hood 13 are both connected to the dust collection box 15 through the conveying pipe 14, the external air can be drawn through the top dust suction hood 11 and the side dust suction hood 13. The dust in the air is drawn into the dust collection box 15. Under the filtration of the filter screen 18, the coal dust is collected into the dust collection box 15, thus completing the collection of coal dust and avoiding dust pollution.

[0029] The bottom of the dust collection box 15 is equipped with a sealing cover. Opening the sealing cover allows for the cleaning of the dust collected inside.

[0030] In one embodiment, the top dust hood 11 is installed on the lower surface of the housing 20. When sampling coal, the sampling hopper 23 comes into contact with the coal and generates dust. At this time, the dust can be adsorbed and removed by the top dust hood 11.

[0031] The side dust suction hood 13 is installed on one side of the feed pipe 19 and is connected to the feed pipe 19. The side dust suction hood 13 is located above the coal sample storage box 26. The feed pipe 19 is connected to the housing 20. When sampling coal, the collected coal flows into the feed pipe 19 and then flows into the interior of the coal sample storage box 26 along the feed pipe 19. When the coal falls into the interior of the coal sample storage box 26, the coal particles collide with each other and generate dust. The side dust suction hood 13 can remove the dust here. When the coal sample storage box 26 is taken out, no dust will flow out.

[0032] In one embodiment, the vacuum pump 17 is installed on the rear surface of the housing 20, and the top dust suction hood 11 is located in front of the housing 20. The vacuum pump 17 can create a negative pressure state inside the dust collection box 15, thereby achieving dust collection and removal.

[0033] In one embodiment, a mounting bracket 22 is fixedly connected to the lower surface of the housing 20, and a drive motor 21 is mounted on the upper surface of the mounting bracket 22. The housing 20 can be installed and fixed through the mounting bracket 22.

[0034] During operation, the mounting bracket 22 is installed on the frame of the conveyor, the housing 20 is located above the conveyor, and the position of the conveyor belt corresponds to the position of the top dust hood 11.

[0035] In one embodiment, a drive shaft 25 is rotatably connected inside the housing 20, and a connecting rod 24 is fixedly connected to the outer wall of the drive shaft 25. A sampling hopper 23 is fixedly connected to the end of the connecting rod 24 away from the drive shaft 25. The output shaft of the drive motor 21 is fixedly connected to one end of the drive shaft 25. The sampling hopper 23 is located inside the housing 20. When sampling coal, the drive shaft 25 is driven by the drive motor 21, and the sampling hopper 23 rotates around the drive shaft 25. After the sampling hopper 23 comes into contact with the coal on the conveyor belt, it sweeps the coal into the feed pipe 19, thereby completing the coal sampling.

[0036] In operation, the mounting bracket 22 is installed on the conveyor frame, with the position of the conveyor belt corresponding to the position of the top dust hood 11. The drive motor 21 drives the drive shaft 25, which in turn drives the connecting rod 24. The connecting rod 24 then drives the sampling hopper 23. After the sampling hopper 23 contacts the coal on the conveyor belt, it sweeps the coal into the discharge pipe 19. The coal then flows along the discharge pipe 19 into the coal sample storage box 26, thus completing the coal sampling. During the sampling process, the vacuum pump 17 remains running. The gas inside the dust collection box 15 is extracted by the vacuum tube 16, creating a negative pressure inside the dust collection box 15. At this time, the external air can be extracted by the top dust suction hood 11 and the side dust suction hood 13. The dust generated when the sampling hopper 23 comes into contact with the coal is adsorbed and removed by the top dust suction hood 11. The dust generated when the coal falls into the coal sample storage box 26 is adsorbed and removed by the side dust suction hood 13. Under the filtration of the filter screen 18, the coal dust is collected into the dust collection box 15, thus completing the collection of coal dust and avoiding dust pollution.

[0037] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any person skilled in the art can easily conceive of various variations or substitutions within the technical scope disclosed in this utility model, and these should all be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. An environment-friendly coal sampling machine for preventing dust flying, comprising a casing (20), characterized in that: The lower surface of the shell (20) is provided with a feeding pipe (19), and a dust removal assembly (101) is installed on the shell (20), wherein the dust removal assembly (101) comprises a top dust suction cover (11), a side dust suction cover (13), a conveying pipe (14), a dust collecting box (15), a vacuum pipe (16), a vacuum pump (17), a filter screen (18) and a coal sample storage box (26). The inside of the top dust suction cover (11) and the inside of the side dust suction cover (13) are fixedly connected with a protective screen (12), the top dust suction cover (11) and the side dust suction cover (13) are communicated with the dust collecting box (15) through the conveying pipe (14), the filter screen (18) is installed in the inside of the dust collecting box (15), one end of the vacuum pipe (16) is communicated with the dust collecting box (15), the other end of the vacuum pipe (16) is communicated with the air inlet of the vacuum pump (17), the conveying pipe (14) and the vacuum pipe (16) are respectively located on the two sides of the filter screen (18), and the coal sample storage box (26) is slidingly connected to the bottom of the inner side wall of the feeding pipe (19).

2. The dust-proof coal sampling machine of claim 1, wherein: The top dust suction cover (11) is installed on the lower surface of the shell (20), the side dust suction cover (13) is installed on one side of the feeding pipe (19), and the side dust suction cover (13) is communicated with the feeding pipe (19).

3. The dust-proof coal sampling machine of claim 2, wherein: The side dust suction cover (13) is located above the coal sample storage box (26), and the feeding pipe (19) is communicated with the shell (20).

4. The dust-proof coal sampling machine of claim 3, wherein: The vacuum pump (17) is installed on the rear surface of the shell (20), and the top dust suction cover (11) is located in front of the shell (20).

5. The dust-proof coal sampling machine of claim 4, wherein: The lower surface of the shell (20) is fixedly connected with a mounting bracket (22), and the upper surface of the mounting bracket (22) is provided with a driving motor (21).

6. The dust-proof coal sampling machine of claim 5, wherein: A driving shaft (25) is rotatably connected in the shell (20), an outer side wall of the driving shaft (25) is fixedly connected with a connecting rod (24), and one end of the connecting rod (24) away from the driving shaft (25) is fixedly connected with a sampling hopper (23).

7. The dust-proof coal sampling machine of claim 6, wherein: One end of the driving shaft (25) is fixedly connected with the output shaft of the driving motor (21).

8. The dust-proof coal sampling machine of claim 7, wherein: The sampling hopper (23) is located in the shell (20).

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